406854574171 has 2 divisors, whose sum is σ = 406854574172. Its totient is φ = 406854574170.

The previous prime is 406854574081. The next prime is 406854574223. The reversal of 406854574171 is 171475458604.

It is an a-pointer prime, because the next prime (406854574223) can be obtained adding 406854574171 to its sum of digits (52).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406854574171 - 2⁹ = 406854573659 is a prime.

It is not a weakly prime, because it can be changed into another prime (406854578171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203427287085 + 203427287086.

It is an arithmetic number, because the mean of its divisors is an integer number (203427287086).

Almost surely, 2^406854574171 is an apocalyptic number.

406854574171 is a deficient number, since it is larger than the sum of its proper divisors (1).

406854574171 is an equidigital number, since it uses as much as digits as its factorization.

406854574171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 406854574171 in words is "four hundred six billion, eight hundred fifty-four million, five hundred seventy-four thousand, one hundred seventy-one".